linux-kernel - [PATCH] blackbird_find_mailbox negative return ignored in blackbird_initialize

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Wed, 23 Apr 2008 21:17:35 +0200
From:	Roel Kluin <12o3l@...cali.nl>
To:	Mauro Carvalho Chehab <mchehab@...radead.org>,
	v4l-dvb-maintainer@...uxtv.org, video4linux-list@...hat.com,
	lkml <linux-kernel@...r.kernel.org>
Subject: [PATCH] blackbird_find_mailbox negative return ignored in blackbird_initialize_codec()

dev->mailbox is unsigned. so a negative return goes unnoticed

Signed-off-by: Roel Kluin <12o3l@...cali.nl>
---
diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c
index a99e9d5..07abd41 100644
--- a/drivers/media/video/cx88/cx88-blackbird.c
+++ b/drivers/media/video/cx88/cx88-blackbird.c
@@ -546,10 +546,12 @@ static int blackbird_initialize_codec(struct cx8802_dev *dev)
 		if (retval < 0)
 			return retval;
 
-		dev->mailbox = blackbird_find_mailbox(dev);
-		if (dev->mailbox < 0)
+		retval = blackbird_find_mailbox(dev);
+		if (retval < 0)
 			return -1;
 
+		dev->mailbox = retval;
+
 		retval = blackbird_api_cmd(dev, CX2341X_ENC_PING_FW, 0, 0); /* ping */
 		if (retval < 0) {
 			dprintk(0, "ERROR: Firmware ping failed!\n");
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/